closes bpo-34212: Build core extension modules with Py_BUILD_CORE_BUI…

closes bpo-34212: Build core extension modules with Py_BUILD_CORE_BUI… · python/cpython@da324d5

Original file line number	Diff line number	Diff line change
`@@ -106,6 +106,7 @@ ARFLAGS= @ARFLAGS@`
`106`	`106`	`CFLAGSFORSHARED=@CFLAGSFORSHARED@`
`107`	`107`	`# C flags used for building the interpreter object files`
`108`	`108`	`PY_STDMODULE_CFLAGS= $(PY_CFLAGS) $(PY_CFLAGS_NODIST) $(PY_CPPFLAGS) $(CFLAGSFORSHARED)`
	`109`	`+PY_BUILTIN_MODULE_CFLAGS= $(PY_STDMODULE_CFLAGS) -DPy_BUILD_CORE_BUILTIN`
`109`	`110`	`PY_CORE_CFLAGS= $(PY_STDMODULE_CFLAGS) -DPy_BUILD_CORE`
`110`	`111`	`# Strict or non-strict aliasing flags used to compile dtoa.c, see above`
`111`	`112`	`CFLAGS_ALIASING=@CFLAGS_ALIASING@`